﻿/*************************************************************************
 *
 *    GNU Lesser General Public License Version 2.1
 *    =============================================
 *    Copyright 2005 by Sun Microsystems, Inc.
 *    901 San Antonio Road, Palo Alto, CA 94303, USA
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License version 2.1, as published by the Free Software Foundation.
 *
 *    This library is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *    Lesser General Public License for more details.
 *
 *    You should have received a copy of the GNU Lesser General Public
 *    License along with this library; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *    MA  02111-1307  USA
 *
 ************************************************************************/

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace CatchUpTv.Utilities
{
    public class Lazy<T>
    {
        private Func<T> _func;
        private T _result;
        private bool _hasValue;

        public Lazy(Func<T> func)
        {
            _func = func;
        }

        public T Value
        {
            get
            {
                lock (this)
                {
                    if (!_hasValue)
                    {
                        _result = _func();
                        _hasValue = true;
                    }
                }

                return _result;
            }
        }
    }
}
